Pith Number

pith:HH2LJQUN

pith:2022:HH2LJQUN4R77FZQY7FVQAOV2H4

not attested not anchored not stored refs pending

Estimating the Effects of Educational System Consolidation: The Case of China's Rural School Closure Initiative

Emily Hannum, Fan Wang, Xiaoying Liu

arxiv:2203.17101 v1 · 2022-03-31 · econ.GN · q-fin.EC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HH2LJQUN4R77FZQY7FVQAOV2H4}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T04:11:31.748457Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39f4b4c28de47ff2e618f96b003aba3f3ec150b822bca81a467997f17b7b01b0

Aliases

arxiv: 2203.17101 · arxiv_version: 2203.17101v1 · doi: 10.48550/arxiv.2203.17101 · pith_short_12: HH2LJQUN4R77 · pith_short_16: HH2LJQUN4R77FZQY · pith_short_8: HH2LJQUN

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/HH2LJQUN4R77FZQY7FVQAOV2H4 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 39f4b4c28de47ff2e618f96b003aba3f3ec150b822bca81a467997f17b7b01b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "98cd79d6b8ffb713b522f17c6e76730f641a1ba81fae4a002e492b121de54842",
    "cross_cats_sorted": [
      "q-fin.EC"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "econ.GN",
    "submitted_at": "2022-03-31T15:20:40Z",
    "title_canon_sha256": "43b925417c227f67213a3c21fca69dfaa08341aabefc43ce9e421cbdb2238a88"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.17101",
    "kind": "arxiv",
    "version": 1
  }
}